Namensräume
Varianten
Aktionen

std::make_tuple

Aus cppreference.com
< cpp‎ | utility‎ | tuple

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
Utilities-Bibliothek
 
std::tuple
Member-Funktionen
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
tuple::tuple
tuple::operator=
tuple::swap
Non-Member-Funktionen
Original:
Non-member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
make_tuple
tie
forward_as_tuple
None
operator=
operator!=
operator<
operator<=
operator>
operator>=
std::swap
get
Helper-Klassen
Original:
Helper classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
tuple_size
tuple_element
uses_allocator
ignore
 
definiert in Header <tuple>
template< class... Types >
tuple<VTypes...> make_tuple( Types&&... args );
 (seit C++11)

Creates a tuple object, deducing the target type from the types of arguments. The deduced types are std::decay<Ti>::type (transformed as if passed to a function by value) unless application of std::decay results in std::reference_wrapper<X> for some type X, in which case the deduced type is is X&.

[Bearbeiten] Parameter

args -
null oder mehr Argumente, um die Tupel aus zu bauen
Original:
zero or more arguments to construct the tuple from
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Rückgabewert

A std::tuple object containing the given values.

[Bearbeiten] Beispiel

#include <iostream>
#include <tuple>
#include <functional>
 
int main()
{
    auto t1 = std::make_tuple(10, "Test", 3.14);
    std::cout << "The value of t1 is "
              << "(" << std::get<0>(t1) << ", " << std::get<1>(t1)
              << ", " << std::get<2>(t1) << ")\n";
 
    int n = 1;
    auto t2 = std::make_tuple(std::ref(n), n);
    n = 7;
    std::cout << "The value of t2 is "
              << "(" << std::get<0>(t2) << ", " << std::get<1>(t2) << ")\n";
}

Output: 

The value of t1 is (10, Test, 3.14)
The value of t2 is (7, 1)
erzeugt ein tuple aus lvalue Referenzen oder entpackt ein Tupel in einzelne Objekte
Original:
creates a tuple of lvalue references or unpacks a tuple into individual objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
erzeugt ein tuple aus rvalue Referenzen
Original:
creates a tuple of rvalue references
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
erzeugt ein tuple durch Verketten einer beliebigen Anzahl von Tupeln
Original:
creates a tuple by concatenating any number of tuples
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/utility/tuple/make_tuple&oldid=30609“